Authorizing apparatus



'H. G. DORSEY AND A. C. KIRSHNER.

CREDIT SLIP AUTHORIZING APPARATUS.

' APPLICATION FILED ocr. 16. 1916.

1,372,804.; Patented Mar.29,1921.

9 SHEEISSHEEI l.

linli 314 ve/vvboz Herbert G. Doney H. G. DORSEY AND A. C. K|RSHNER.'

CREDIT SLIP AUTHORIZING APPARATUS APPLICATION FILED OCT. 16,1916.

Patented Mar. 29, 1921.

9 SHEEiS-SHEEI 2.

Milli LLI'IJIJ (1110a 11 fo'c Herbert G. Dorsey b C. Kirshner Z MM VIIIIIIIIIIImIIIIIIIIIIIIIIIIII 0 H. G. DORSEY AND A. C. KIRSHNER.

CREDIT SLIP AUTHORIZING APPARATUS.

APPLICATION FILED OCT. I6. I916.

Patented Mar. 29, 1921.

'9 SHEEIS-SHEEI 3- Herbert G. Dorsey Arthur C. Kinhner we. wfr

H. G. DORSEY AND A. C. KIRSHNER.

CREDIT SLIP AUTHORIZING APPARATUS.

APPLICATION FILED OCT. 16, 1916. Patented Mar. 29 1921.

IHfIl glam 4 14 0: Herbert G. Dorsey Art ur Ku-shner H. G. DORSEY AND A. C. KIRSHNER.

CREDIT SLIP AUTHORIZING APPARATUS.

4 APPLICATION FILED OCT-161 I916.

Patented Mar. 29, 1921.

9 SHEEIS-SHEEI 5 0] wmm/boz Herbert G. Dorsey Kinbner a Z, SHOW H. G. DORSEY' AND A. C. KIRSHNER.

CREDIT SLIP AUTHORIZING APPARATUSn APPLICATION FILED OCT. 16, 1916.

Patented Mar. 29, 1921.

3141x211 fox Herbert G. Dorsey PIE 1111B. IEIIM! H. G. DORSEY AND A. C. KIRSHNER. 'cnzon suP AUTHORIZING APPARATUS.

M L QM. M 2 Mm A m a Wu W 9 m9 m a 2 4 2 8 a m on. w? H M m R: \mt .2 M $5 *2 m \nm. .09 m 59 A A w n2 w /.QW fimfi m A, m L1. I n: m As Edi 96E m2 4 0 8, m .U DFFVE NF 0E w 4 H. G. DORSEY AND A. C. KIR SHNER.v CREDIT SLIP AUIHORIZING APPARATUS.

APPLICATION FILED OCT. 16, 19l6- Patented Mar. 29, 1921.

9 SHEETS-SHEEI'Q;

mi m in ONE; km;

omree STATES PATEN OFFICE.

HERBERT G. DORSEY, OF GLOUCESTER, MASSACHUSETTS, AND ARTHUR C. KIRSHNER, OF DAYTON, OHIO,'ASSIGNORS TO THE NATIONAL CASH REGISTER COMPANY, OF .DAYTON, OHIO, (INCORTORATED IN 1906,) A CORPORATION OF OHIO. I

' CREDIT-SLIP-AUTHORIZING APPARATUS.

Specification of Letters Patent.

Patented Mar. 29," 1921.

Original application filed March 2, 1916, Serial No. 81,666. Divided and this application filed October 16,

' 1916. Serial No. 125,868.

To all whom it may concern:

Be it known that we, HERBERT Gr. DoRsEY and ARTHUR C. KIRsH nR, citizens of the United States, residing at Gloucester, in the count of Essex and State of Massachusetts, and ayton, in the county of Montgomery and State of Ohio, respectively, have invented certain new and useful Improvements in Credit Slip Authorizing Apparatus, of which we declare the following to be a full, clear, and exact description.

This invention relates to store service systems and has for its main object to provide mechanism for assisting in the authorization ofv credit sales. 7

All the patentable subject matter disclosed'in this application is not claimed herein, asthis is a divisional'application of an application for United States Letters Patent, filed March 2, 1916, Serial No. 81,666 (noxvPatent No. 1,321,900, dated Nov. 18, 1919)."

In many commercial houses the problem of compelling sales people to secure proper authorization before making a'sale on credit is a very important -one..' It is obviously unsafe in most cases to trust the judgment of the clerks as to whether credit should be allowed and to compel a message being sent to some credit man who is authorizedfto allow creditis a lengthy and tedious proceeding. In many cases an improvement has i been made by using a telephone over which the credit man is communicated with, but

even in such cases there is nothing to show that the credit man authorized any particular transaction. The invention is designed, therefore, to obviate this difficulty by providing means for making a permanentrecord on sales slips to authorize credit in particular cases and so arranging the means that it can be operated only by the credit man and not by the clerk. To be more specific, the telephone is used as a means of communication between the clerk and the credit'man so thatboth the identity of the customer and the amount of the purchase may be made known to the latter,

and an electrically operated stamp located at the clerks station is provided to stamp an inserted sales slip, the stamp being operated by the credit man through electrical connectionsto the credit mans station.

Means are provided at the clerks stations for selecting any desired one'of a plurality of credit men, each credit man being provided with a switchboard comprising line signals, line jacks and means for ringing the clerks communicating with the clerks and operating the stamps.

An object of this invention is to provide means. whereby the calls ordinarily handled at the switchboard of a credit man are transferred to the switchboard of another credit man. When the calls are transferred from one switchboard'to another the credit man at the latter makes all the line connections at his own switchboard as well as handles all the calls by his own telephone set, stamp controlling means and ring key.

lVith this and incidental objects in view, the invention consists in certain novel features of construction and combinations of' parts, the essential elements of which are set forth in appended claims, and a preferred form of embodiment of which is hereinafter described with reference to the drawings which accompany and form part of the specification.

Of said drawings Figure l is a reduced perspective view of the clerks telephone and stamping device.

Fig. 2 is a partial left hand side elevation of the stamping device with the cabinet shown in cross section.

Fig. 3 is a transverse vertical section taken on the line 3-3 of Fig. 6. The base of the device and the bell have been omitted.

Fig. i is a detail sectional view taken on the line l-l of Fig. 2.

Fig. 5 is a transverse vertical section taken along the right hand side of the bank of keys of the stamping device and looking toward the left.

F ig. 6 is a right hand side elevation of the stamping device with the cabinet and the solenoid'of the stamp shown in cross section.

Fig. 7 is a perspective view of one of the desks supporting two of the switchboards at the credit station.

Fig. 8 is a detail top plan view of the section of a credit mans switchboard, carrying the white line lamps and the line jacks.

Fig. 9 is a detail sectional view taken on line 99 of Fig. 11.

the condition of the jack when the plug is not inserted and the transfer key is in normal and operated positions respectively. Figs. 15 and 16 show thecondition of the jack when the plug is inserted and the transfor key is in normal and operated positions respectively.

Fig. 17 is a diagrammatic view of the electric circuits olthe system.

Fig. 18 is a diagrammatic view of the electrical connections at two of the switchboards. 1

In this system a telephone and stamping device are provided at each clerks station.

l/Vhen credit is to be asked for a customer the clerk. presses a key to call the credit man handling the credit account of: the customer. Depression of the key notifies the credit man that his attention is desired by a lamp signal, as shown in the particular embodiment. The credit man connects his telephone set with that of the clerks and then rings the clerk to indicate that'he is ready to be communicated with. The clerk then removes her telephone from the hook and reads the amount of the sale and name of the customer desiring credit and it such credit is to be given the credit man operates a switch controlling the stamping device at the clerks station to make an impression on the sales slip, thereby authorizing the credit. If, however, credit is not to be given the credit man cancommunicate over the telephone with the clerk and give whatever instructions are necessary, such as a request that the customer call at the ofiice.

In order that the detail-description which is to follow may be understood better a general outline of the arrangement and operation of the system as illustrated diagrammatically in Fig. 17 will be given. It will be obvious that the arrangement shown in Fig. 17 is for illustrative purposes only, the system being capable of meeting all demands and requirements of any mercantile establishment carrying 011 a credit business. Eight credit men are employed at the central or credit station and each credit man is provided with a switchboard. Two switchboards are supported on a single desk. Four credit men, one at each desk, normally take care of the calls from a number of clerks stations and the other four detail transverse sectional .dlvision of the alphabet.

credit men take care of the calls from the remaining clerks stations, the store in this manner being divided into two divisions. Each credit man is assigned certain letters of the alphabet in the credit file so that he handles calls from all of the clerks stations in his division or the store, but only for his Each stamping device is provided with a plurality of keys,

. one for each credit man in the division oi the store in which the stamping device is located.

Each switchboard comprises two rows of differently colored linelamps, preferably red and white, a'row of line jacks, the telephone set, a stamp key for controlling operation of the stamping devices, and a ring key for ringing the clerks. The switchboards of the credit men taking care or one or the divisions of the store are arranged in pairs, that is, the switchboards are so electrically connected that all of the calls ordi narily handled at one of the switchboards of a pair can normally behandled at the other switchboard and vice versa. hen a clerk depresses one of the keys on the stamping device a white linelamp on the switchboard of the desired credit man is lighted as well as the corresponding red line lamp on the other switchboard or the pair. These lamps, when lighted, indicate the particular clerks stations calling. Ordinarily a credit man answers only the calls shown by the white lamps; however, if not busy he may also answer calls shown by the red lamps and in this way assist the credit man at the other. switchboard of the pair when the latter credit man may have an unusual rush of business to handle.

When a credit man is 01f duty or temporarily absent from his switchboard the credit man at the other switchboard of the. pair may take care or all the calls received at the two switchboards by answering all the calls shown by both the red and white line lamps, or the credit man when he leaves may close a switch by a key, called the connecting key herein, so that the credit man at the same desk may handle all of the calls received on both switchboards of the desk. In the latter case the credit man remaining on duty answers the calls for the clerks stations in both divisions of the store but only for his section or division of the alphabet. This'he does by inserting plugs in the line jacks on both'switchboards and using the telephone set and stamping and ringing keys at one switchboard only. By answering the calls indicated by both the white and red lamps on the switchboard of a desk the credit man may handle during slack business hours, all of the calls ordinarily handled at four switchboards if the connecting key is operated at the desk at which he is handling the calls. In this way two credit men are able tohandle all of "the calls on the eight switchboards when the other credit men are absent.

Two credit men, .as above stated, may handle'at two desks all of the narily handled by the eight credit men but it is clear that when only one credit man is 011 duty it would be diflicult and tediousfor him to handle all the calls onthe switchboards of two desks which would be the case if the connecting keys on the two desks the switchboards of two desks can betransferred to the switchboards on another desk and then if the connecting key on the latter desk is depressed the credit man at this latter desk can answer all of the calls indicated by the red and white lamps.

Clea-leis telephone and stmping device. c

The clerks telephone comprises a transmitter 30 (Fig. l) and a receiver 33 which are mounted on a hand grip 34. The clerks telephone is hung on a hook 35 which is pivoted on, a bracket 36 (Figs. 2 and 6) fast on the cabinet 37 right hand .end'of the receiver hook 35 is provided with a recess "through which projectsa pin 32 on a bar 38 slidably mounted on the cabinet 37. When the telephone is removed from the hook 35 a spring 39 interposed between the hook and apin on the cabinet, rocks the hook clockwise, thereby lowering. the bar 38 which is employed to limit movement of the-hook.

'Keys 40 (Figs. 1, 2,4 and 5), assigned to the various credit men at the credit station,

are slidably mountedon a frame 43 fast on the cabinet of the machine. Six complete keys 40 are shown in the figures, but the number may be varied, according-to the number of the credit men employed. The

vlower ends "of the keys 40 are slidably mounted in a bar 44 fast on the frame 43 and the keys carry pins 45 projecting through slots 46 (Fig. 2) in the frame 43. Springs 47 (Figs. 4 and .5) coiled about the key shanks. and compressed between the bar 44 and shoulders on'the keys, serve to retain the keys in normal undepressed position and i to restore the keys to this position when they are released. When a key-is depressed its pin45 engages theinclined edge of a corre- 1 sponding shoulder 49 (Fig. 5) on a detent 50 thereby raising the detent until the pin 45 has passed out of engagement with and beneath the inclined edge ofthe shoulder 49 calls ordia of the stamping device. The

when a spring 53 (Fig. 2) restores the. detent to normal position thereby moving the shoulder 49 over the pin 45 on the depressed key to lock the latter in depressed position. The detent 50 is providedwith slots 54 (Fig. 5) through which pins 52 on the frame 43 project, the detent being mounted slidably in this manner. The spring 53 (Fig. 2) is interposed between a pin 55,-which projects from the detent 50 through a slot 56 in the frame 43, and a pin (not shown) on the frame 43.

The upperend of the detent 50 is provided with a projection 57 (Figs. 2 and 5) which engages a beveled edge 58.0n the receiver hook'35 so that when the receiver hook is raised upon removal of the clerks telephone the detent 50 is raised to release the depressed key. It. is understood, of course, that the spring 39 (Fig. 2) is stronger than the spring 53 so that when the receiver hook is raised by the spring 39 the detent is raised against the action .of the'spring 53.

A rigid contact 60 (Fig. 2) and three spring contacts 61, 62 and 63 are mounted on I the frame 43 and the contacts 60 and 61 are normally in engagement. A pin 64 of insulating material is slidably mounted on the contacts 60, 61 and 62. {When the detent 50 is raised by the rocking of'the telephone hook 35 a pin 65 (Figs. 2 and 4) on the detent engages the pin 64 whereupon a shoulder on the pin 64 moves the contact 61 out ofengagement with the contacts 60 and moves the three contacts 61, 62 and 63 into engagement with each other. Each key 40 carries a pin 66 of insulating material (Fig. 4) which, when the key is depressed moves a contact 67 into engagement with a contact 68, a pair of these contacts 67 and 68 being provided for each key.

The sales slip to be stamped is inserted under a frame 7 0 (Figs. 1, 3 and 6) in which are supported date wheels 73 (Fig. 3). The frame is mounted on a plate 74 supported by brackets7 5 (Fig; 6) fast on the cabinet 7 to carry the sales slip against the date type carriers 73,the printing impression taken from the type carriers showing that the credit was authorized. The platen lever 76 is loose on a cross rod 81 mounted on de- .pending portions 77 of the plate 74 and its rear end is provided with an opening through which a pin 79 mounted in the upper end of a core 80 of a solenoid 83 projects. depending portions 77 and 82 of the plate 7 4. When credit is to be extended the credit man energizes the solenoid 83 whereupon the core 80 is drawn down to operate the platen lever 76 to make a printing impression on the sales slip from the date type carriers 73.

The downward movement of the core 80 The solenoidi 83 is mounted on the is limited by engagement of itslow'er end with a block 91 of non-magnetic'material seated in. a stationary core member 821.

relative to the latter against the action of a spring 86 and strike a bell 87, thereby notifying the clerk that the sales slip has been stamped.

The date type wheels 73 (Fig. 3) are rigidly mounted on the left hand ends of nested sleeves (not shown) mounted on a rod89 which is supported in the frame 70 and a bracket 90 fast on the frame 7 0; Adjusting disks 93 (Fig. 3) having knurled ridges or flanges, are mounted on the right hand ends of the sleeves carrying the type wheels and are employed to adjust the wheels 1n the manner fully described in the aforesaid parent application (now Patent No. 1,321,900, dated Nov. 18, 1919).

An inking ribbon (not shown) which passes under the type wheels is fed from one spool onto another by means of knurled disks 108 (Figs. 1 and 3) as fully described in the aforesaid parent application (now Patent No. 1,321,900, dated Nov. 18, 1919).

An arm 115 (Fig. 3) is pivotally mounted on the plate 74 and its left hand end projects through a slot 116 (Fig. 12) in the plate 74 and into a groove (not shown) formed in the rear wall of the frame 70. When the sales slip to be stamped is placed under the date type carriers 73 it engages the arm 115 and rocks it counter clockwise (Fig. 3) thereby moving a spring contact 118 (Fig. 6) into engagement with a contact 119 to close a circuit through a lamp at the credit mans station for the purpose of lighting the lamp to indicate that the sales slip is in-position to be stamped. As the spring contact 118 retains the arm 115 in engagement with the sales slip it can be seen that this arm also serves to hold the slip in position to be stamped.

It is usual when the goods purchased are left by the customer for delivery by the store to send a delivery slip with the goods to the delivery department, the delivery slip having the address and any other desired information. In order to notify the delivery department that the sale has been authorized, punching means is provided for perforating the delivery slip. The deliveryslip may be attached to the usual sales slip or it may be a separate slip in which case it is placed under the sales slip when inserted.

Punches 123 (F ig. l2) aremounted in a plate 1123 detachably mounted by a screw 1124 to a punch head 124 slidably mounted in a bushing 125' formed on the plate 74. The punch head 124 carries a pin projecting through a recess 126 formed in a lever 127 pivoted at 128 on the bushing 125. The pin 79 carried by the core 80 projects through a recess formed in the forward end of the lever 127. It can be seen fom this construction that whenthe solenoid 83 is energized to move the sales slip against" the date type carriers 73 the punch head 124 is raised through the lever 127 to force the punches 123 through the delivery slip into holes formed in a die 129 (Figs. 6 and 12) thereby perforating the delivery slip. A box 130' (Figs. 1 and 6) is screwed on the die 129 by a thumb screw 133 and catches the punched pieces.

Switchboards at credit station.

One of the desks carrying two of the switchboards operated by credit men is shown in Fig.7. It is understood, ofcourse, thatthe number of the desks and switchboards employed in any establishment depends upon the volume of credit business transacted. The circuits, as shown in Fig. 17 provide for four such desks.

Each switchboardcomprises two rows of line lamps, the lamps 136 in the upper row being preferably red while the lamps 137 in the lower row are preferably white. Below each white lamp'is its corresponding line jack 138 (Figs. 10 and 11) through which line connections'are made by the insertion of the credit mans plug 139 intosockets 140 formed in a frame 143 carrying the row of line jacks and the row of white line lamps 137. When a credit'man is on duty he in serts his telep one plug of ordinary form into a socket 44 (Fig. 7) so that when he inserts his line plug 139 into the line jack below a lighted lamp he will establish line connections between the clerks station calling and his own switchboard.

It is understood, of course, that there is one line jack for each clerks telephone and stamping device in the corresponding division of the store. For example, if but two switchboards are employed, lines from certain clerks stations terminate in one switchboard and the lines from the other clerks stations terminate in the other switchboard so that each of the two credit men handles calls only from certain clerks stations. Of course, if it is desired, the electrical connections may be arranged so that each credit man handles calls from all of the clerks stations in the store but only for one division of the alphabet.

If more than two switchboards are provided each credit man is assigned certain letters of the alphabet and takes care of all the calls from all the clerks stations in one division of the store, but only for his particular division of the alphabet. In such case the switchboards of the credit men taking care of one division of the store are arranged in pairs or multiple so that whena white line light 137 on one switchboard is then lifts her telephone from its hook and communicates with the credit man. Then the clerk insertsthe sales slip into position to be stamped the contacts 118 and 119 (Fig. 6) are moved into engagement to close acircuit through a lamp 147 thereby notifying the credit man that the slip is in position to be stamped. The credit man then depresses the stamp key 148 if credit is to be given to close a circuit through the stamp solenoid 83v and thereby operate the stamp as above described.

lVhen a credit man leaves hls switchboard he depresses the connecting key 149 (Fig.

7) between the two switchboards on the desk so that the other credit man at the desk can plug in the line acks on either switchboard and communicate with the clerks in both divisions of, the store by one of the telephone sets, ring the clerks by the corresponding ring key 146 and operate the stamps by the corresponding stamp key 148. I

When a credit man leaves his switchboard he may depress the connecting key as above stated or pull out atransfer key 150 011 his switchboard to transfer the calls from his switchboard to another switchboard. In such case the white line lamps on the credit mans switchboard to which the calls are transferred are lighted whenever the clerks attempt to callthe credit man at the switchboard from which the calls are transferred The credit man at the switchboard to which the calls at his own switchboard.

' stood better from a description of the circuitswhich is to follow presently.

The line jacks 138 and the transfer keys 150 and connections will now be described in detail so that a description of the electrical circuits will be understood more readily. Each line jack 138 (Figs. 10, 11, 13, 14, 15 and 16) comprises seven spring contacts 152 to 158 inclusive mounted in the frame 143. Normally the line jacks are in the condition shownin Fig. 13, the contacts 154 and 155 being the only contacts in engagement. When the plug 139 (Figs. 11 and 15) is inserted into a jack the sleeve 160 of the plug contacts with the spring 152 and the point 163 of the plug engages the contacts 153 and 158. The contact 158 normally engages a pin 164 of insulatingmaterial on the contact 155 thereby normally retaining the contacts 154 and 155 in engagement. lVhen the plug 139 is inserted movement of the contact 158 permits the contact 155 to move out of engagement with the contact 154.

The transfer key 150 (Figs lO and 11) is slidably mounted in the frame 143 carrying the line jacks. The transfer key has a conical portion 165 engaging a nose 166 on a' plate 167 slidably mounted on the frame 143 the frame being provided with screws 169 which project through slots in the plate. The plate 167 is provided with downwardly extending projections 170 engaging blocks 173 of insulating material on V the corresponding contacts 157 which tend to move the plate 167 toward the right. When the transfer key 150 is drawn out from its normal (Fig. 11) to its transfer position (Fig. 10) its conical portion 165 moves the plate 167 toward the left against the action of the contacts 157 to the position shown inFigs. 10 and 14. A pin 172 of insulating material is mounted in the contacts 153 to 157 inclusive and is so constructed that when the contact 157 is movedby movement of the transfer plate 167 to'transfer position the contact 154 is moved out of engagement with the contact 155-and the contact 157 is moved into engagementwith the contact 156.

After the transfer key is drawn out to transfer position the corresponding switchboard is not to be used. Fig. 16, however, shows the plug 139 inserted into a line jack after the transfer key-has been pulled out to transfer position in order to show that the condition of the line jack is not changed in case the credit man forgets to pull out the plug 139.

In order to aline the transfer key in its normal and transfer positions the lower- V-shaped portion of a spring 175 (Figs; 10 and 11) on the frame 143 engages in one of the annular grooves 176 formed in the transfer key when the transfer key is in one of its two positions.

Electric circuitaj Having described in detail the mechanical construction of the clerkstelephones and stamping devices and of the switchboard being represented by one line ack 138 and the corresponding red and white lamps 186 and 137. For convenience the different switchboards have been lettered and the desks carrying the switchboards have been numbered. The telephone sets and the various keys are shown on the switchboards on desk 11 only. Furthermore, only two of the clerks telephones and stamping devices are shown in this figure. The credit man at the switchboardsA, B, C and D normally handle all the calls from one-half of the clerks stations includin clerks station X, and the other credit men at switchboards E, F, G and H handle all the calls from the other half of the clerks stations, including clerks station Y. The switchboards A and 13,13 and F, C and D and G and H are arranged in pairs so that when a white line lamp 137 at one switchboard is lighted the corresponding red line lamp 136 at the other switchboard of the pair is lighted and vice versa.

For the sake of convenience the various corresponding connections (with the exception of the contacts) to the different switchboards are designated by the same reference numerals with the reference letters a, cc b, 44 ,77 4: a G, 44 7) and ca {:77 d the reference letters being indicative of the switchboards to which the connections are appropriate. The like reference numerals for the corresponding electrical connections at the clerks stations have the reference letters X and y added so that the connections of the two stations are also readily distinguishable.

For the sake of illustration the various electrical connections and circuits between clerks station X and switchboard B when the connecting key and transfer key at the latter switchboard are not operated will be described, it being understood that the connections between any clerks station and a credit mans switchboard are similar under these conditions.

Line signal circuit.

When a clerk at station X desires to communicate with the credit man at switchboard B she presses the 7) key 40 thereby moving r and 184, wire 182 common to the contacts 68, contacts 68 and 67 closed by the 6 key, wire 185 wire 186", white lamp 137, wire 187 wire 188*, contacts 155 and 154; of line jack a; at switchboard A, wire 189, contacts 154 and 155 of the line jack a; at switchboard B, wire 190, common to the contacts 155 at switchboard l3, relay 193 wire 194 and thence through the main negative wire to the generator. The current over this circuit lights the white line lamp 137 appropriate to the clerks station X on the switchboard B to notify the credit man that communication is desired. It will be obvious that the red line lamp 136 on switchboard A is arranged in multiple with the corresponding white line lamp 137 on switchboard B as part of the-current passes from wire 185 through wire 182*, red lamp 136 at switchboard A, and wire 187 to the wire 188. Therefore, each time a white line lamp on switchboard B is lighted the corresponding red line lamp on switchboard A is lighted and vice versa.

Buzzer circuit.

If desired, a buzzer 195 may be employed at each desk for use in case a credit man desires to le: ve' his switchboard temporarily or is engaged in correcting or marking the cards of the credit index. The buzzer circuit includes the armature 196 of the relay 193 which is energized by the current over the line signal circuit to move the armature 196 into engagement with a contact 197. When a buzzer key 198 (Figs. 7, 17 and 18) is depressed and retained in depressed position by any desired means, a contact 199 is moved into engagement with the contact 200 so that when the armature 196 is moved into engagement with the contact 197 a circuit is completed through the buzzer thus audibly calling the credit ma-ns attention to the desire for communication. This circuit is as follows: from the generator through the main positive wire, wires 203, 20 1 and 202 buzzer 195, wire 205, contacts 200 and 199, wire 206 contact 197, armature 196 of the relay 193 wire 194C and thence through the main negative wire to the generator.

F lash circuits.

When the goods purchased .are to be taken by the customer it is necessary that the credit be authorized before the customer leaves with the goods, but in cases in which the goods are to be delivered'it is not necessary in some cases that the customer wait until the credit has been authorized. It is, therefore, desirable that a credit man. anthorize sales in which the goods are to be taken with the customer before he authorizes sales involving delivery. Therefore, in order to notify the credit man when the customers wish to take the goods with them each of the clerks stamping devices is provided with a key 210 (Figs. 1 and 3) which when depressed simultaneously with one of the keys 40, controls electrical connections which; cause the corresponding white line the keys 40 and is slidably mounted on the key frame43 in the same manner, and when depressed is lockedin depressed position by the detent 50. The key 210 carries a pin 213 (Fig. 3) which, when depressed moves a contact 214 into engagement with the con tact 184 and through a pin 215, slidably mounted on the contacts 183 and 184, moves theicontact 183- out, of engagement with the contact 184'sothat the above describedsig- 'nalf' circuit is not closed. When, however,

one of the keys 40, for example, the 5 key is depressed with thekey 210, another circuit is closed. This circuit is as follows: from'the generator through the main positive wire, wire 216, relay 217, wire 218, wire 219, wire 220,contacts 214 and 184, wire 182 contacts68 and 67, wire 185?, wire 186 white line lamp 137 on switchboard B, wires 187* and 188, contacts 155 and 154 of line -jackw at switchboard A, wire 189 contacts 154-and 155 of linejack mat switchboard B, wire 190 Wire194 thence through the main negative wire to the generator. Theresistance of the relay 217 in this circuit is sufficient to lowerthe amountof current passing through the line lamp so that the latter'is not lighted, The relay 217,

however, is energized so that it attracts its armature 223 thereby moving the armature into engagement with a contact 224 to close a circuit which is as follows: from the generator through the main .positive'wire, wire 216, wire 225, relay226, contact 224, armature 223, wire 227, thence through the main negative wire to the generator. The current passing through the relay 226 energizes thelatter whereupon it attracts its armature 228 tomove thelatter into engagement with a contact 229. It is obvious that a large part of the current now passes from the generator through the main positive wire, wire 216,

- wire .225, contact 229, armature 228, wire 230, wire 233, wire 219 and wire 2%, the

. remainder of the circuit being. the same as that described'above as including the relay 217 and the line lamp 137 in series; The

. current which now passes through the line lamp is sufiicient to light it; When part of the current passes through the contact 229 to the armature 228 the amount of current passing'through the relay 217 is greatly re- 'duced so thatits armature 223 moves out'of engagement with the contact 224 thus opening the circuit through relay 226. The relay 226 is thereby deenergized and its armature 228 moved out of engagement with the contact 229 to extinguish the line lamp. It can be seen from the above description that the relays 217 and 226 are energized and then denergized' one after the other and that each time the relay 226 is energized the line lamp is lightedand' each time the relay 226 is deenergiz'ed the lamp is extinguished. In this manner the necessary pulsations of current over the circuit including the armature 228 and the line lamp are causedto make the line lamp flash until the credit man inserts his plug 139 into the corresponding 'line jack.

Ringing circuit, 1

' When the creditiman wishes to notify the clerk that he is ready to be communicated with he inserts hisplug 139 in the line jack below the lighted line lamp and presses the ring key 146; Insertion of the plug moves thecontact 155 out of engagement with the contact 154 thereby opening the line signal circuit. Depression of the ring key 146 closes. a circuit over which the generator charges two condensers and energizes the electro magnet of the clerks receiver, the electro-magnet being deenergized when the condensers become fully charged. The energizing and .deenergizing of the electromagnet causes thediaphragm of the latter to click. Mechanical means is provided to establish a short circuit through which the condensers discharge, the mechanical means being constructed to make andbreak the short circuit with considerable frequency.

Each time the short circuit is made the condensers discharge thereby energizing. and

denergizing the electro-magnet of the receiver to make the diaphragm click. It can, therefore, be seen that as the diaphragm of the clerks receiver clicks each time the condensers are charged and each time the condensers discharge the receiver makes a humming noise to attract the clerks attention.

The circuit through which the generator energizes the electro-magnet of the clerks.

receiver is as follows: from the generator through the main positive wire, wire 240", clerks telephone set, condenser 243 wire 242, contacts 61 and 60, wires 244, 244 245 contact 152, the sleeves of the plug 139, frame 143, wires 246 and 241 contacts 247 and 248 moved into engagement by depression ofthe ring key, wire249 wire 250, condenser 251, wire 252, inductance 253, wire 254, wire 255*, contacts 256 and 257 also moved into engagement by depression of the ring key, wire 258 and thence through thethrough the disk 263 is completed and the condensers 2&3 and 251 discharge through this short circuit which is as follows: from the disk 263, brush 266, main positive wire, wire 210", clerks telephone set, condenser 243", wire 24:2, contacts-61 and 60, wires 244, 24 1 and'2a5", contact 152, the sleeve of plug 139, frame 143, wires 246" and 241", contacts 247 and 248,.wire 249", wire 250, condenser 251, wire 252, through the brush 265 to the disk 263. When the condensers 243 and 251 discharge over this short circuit the electro-magnet of the clerks telephone receiver is energized and then deenergized whereupon the diaphragm again clicks. From the above description it can be seen that each time brushes 265 and 266 engage blocks 264; and each time the blocks move out of engagement with the brushes the diaphragm clicks so that a humming noise is caused thereby notifying the clerk that the credit man is ready to be communicated with. When the blocks 264amove out of engagement with the brushes 265 and 266 the path of the current from the generator is as follows: from the generator through the main positive wire, brush 266, disk 263, brush 265,

. inductance 253, wire 254E, wire'255", contacts 256 and 257, wire 258", through the main negative wire back to the generator. As the inductance .253 offers limited resistance to the constant current but a very large resistance to a varying current, as is well'known,

the current due to the discharge of the condensers 243 and 251 is prevented from passing through the inductance and therefore through the generator and is compelled to pass through the disk 263. As-the condensers 24:3 and 251 oflier a very large resistance to the passage of a constant current but onl a slight impedance to the passage of a pn satory or alternating current, as is well known, the condensers compel the current from the generator to short circuit through the disk 263 when the blocks 264: are not in engagement with the brushes 265 and 266. The resistance of the inductance 253 is large enough to prevent excessive current from the generator from passing through the short circuit closed by the disk 263.

It can be seen that the solenoid 83 of the stamp is in parallel with the clerks telephone set when the contacts 118 and 119 are in engagement and that if the condenser 251 were not in series the above described circuit from the generator through the condenser 251 and the clerks telephone set would supply a constant current to the solenoid of the stamp and cause complete or artial operation of the latter. As the con enser 251 prevents the passage of constant current through the solenoid the stamp cannot be operated over this circuit. V

By tracing the ring circuits closed through the telephone receiver at clerks station Y by depression of the ring key 146 at switchboard F it will be evident that these circuits correspond exactly to the corresponding circuits, between clerks station X and switchboard B, except that the former include contacts 312 and 313 which are normally inengagement and moved out of engagement by depression of the connecting key 149.

Talking circuits.

When the clerk lifts her telephone from the hook the contacts 61, 62 and 63 are moved into engagement, as above described, to close a circuit over which the energizing current passes. This circuit is as follows: from the generator through the main positive wire, wire 240 clerks telephone set, wire 27 5*, contacts 62, 61 and 63, wires 276, 276 277", contact 158, point of plug 139,- contact 153, wires 278" and 281", through the telephone set at switchboard B, inductance 283", wire 279", thence through the main negative wire to the generator. Inductances 280 and 282" are bridged across the clerks and credit mans telephone receivers respectively to regulate the amount of current passing through the receivers. The resistance and inductance of a receiver and the appropriate coil 280- or 282" are SO proportioned that most of the constant energizingcurrent passes through the coil while most of the vibrating voice current passes through the receiver.

.The circuit over which the vibrating voice current passes is as follows: from the clerks telephone through wire v275", contacts 62, 61 and 63, wires 27 6, 276 277",contact 158, point of plug 139, contact 153, wires 278" and 281", credit mans transmitter and receiver, wire-284i", condenser 285", wire 286", wire 20 wire 203, main positive wire and wire 240 back tothe clerks telephone; The inductance 283" offers limited resistance to the energizing current but larger resistance to the voice current and the condenser 285" offers a large resistance to the energizing current but a very small resistance to the voice current. Therefore, the voice current does not pass through the inductance 283" and the generator and the energizing current does not pass through the condenser 285". As the inductance 283" prevents the passage of voice currents cross talk between the clerks stations in one division and the telephone sets of the credit men handling the sales in the other division is prevented, as is well understood.

It will be observed that a retardation coil 288 is in series with the telephone sets and that acondenser289 is-bridged across the line. This condenser and coil are for the purpose of eliminating undesirable noises in the telephone receivers due to the commutation of the generator as is well understood. The voice current is not affected by the coil 288 as the latter is not in the circuit over'which the voice current passes.

The talking circuits between switchboard F and clerks station Y correspond to those between switchboard Band clerlis station X except thatthe former includes contacts 320 and 322 which are normally in engagement and are moved out of engagement by depression of the connectingkey 149.

Stamp lamp circuit. When the sales slip to be stamped is inserted into stamping position the contacts 118 and 119 are moved into engagement, as above stated, to close the stamp lamp circuit which is as follows: from the generator through the main positive wire, wire 240, solenoid 83 of the stamp, contacts 118 and 119, wires 292*,244, 244, 245', contact 152, sleeve of the plug 189, frame 143, wires 246 and 241 contacts 247 and 290 which are normally in engagement, wire 293 contacts 294 and 295, stamp larnp147, wire 2%, thence through the main negative wire to the generator. The current through this circuit lights the stamp lamp 147 to notify the credit man that thesales slip is in position to be stamped.

As above stated, when the clerks telephone is on the hook, the contact 61 is in engagement with the contact 60 so that the telephone set and condenser; 243 are in parallel with the stamp. It can therefore be seen that if the condenser 243 were not provided the constant current from the generator would pass through the clerks telephone set and the stamp lamp and light the lamp when the contacts 118 and 119 are not closed. However, as a constant current cannot pass through the condenser the stamp lamp cannot be lighted when the contacts 118 and 119 are not in engagement. Although the solenoid 83 of thestamp is in the above described stamp lamp circuit, yet the resistance of the stamp lamp ,14'7-is so large that the amount of current passing through the solenoid 83 is not sufficient to operate the latter.

Stamp circuit.

not in the stamp circuit the amount of our.

rent now passing through the stamp is sufficient to efiect its operation.-

7 The, condensers 251land 243 as above stated, are in the ring circuit through which the generator charges the condensers and energizes the electro-magnet of the clerks receiver. The condenser 243 without the condenser 251, would serve to make the diaphragm of the telephone receiver hum, as above described, The condenser 251 is also provided, however, to preventa constant current from passing through the solenoid of the stamp when the contacts 118 an 119 are closed, the clerks telephone is on the hook and the ring key is depressed, the stamp being in parallel with the clerks telephone set, as above described. Constant current through the stamp is necessary'to its operation and, therefore, as the condenser 251-prevents the constantcurrent from passing through the stamp when the ring key is depressed the stamp cannot be operated over the ring circuit including the generator.

The stamp lamp and stamp circuits between switchboard F and clerks station Y are like those between switchboard B and clerks station X except that the former include the contacts 312 and 318.

Circuits with connecting lacy operated. When a credit man leaves his switchboard he may depress the connecting key 149 so that the credit man at the other switchboard on the desk may complete the line connections on either switchboard and use but one telephone set and the corresponding ring and stamp keys to communicate with the clerks in either division of the store, ring the clerks and operate the stamps. In the diagrammatic view shown in Fig. 17 the circuits are shown arranged so that the calls received on switchboards F, G and H may be handled by the telephone sets and ring and stamp keys at the switchboards A, B, C and D respectively. For the sake of illustration the various circuits between clerks station Y and switchboard B will be described when the connecting key on desk 11 is depressed.

It is understood that the signal circuits are not changed by depression of a connecting key as the white line lamps 137 on the switchboard are lighted regardless of whether the connecting key is depressed or not. There- 'fore, it a clerk at clerks station- Y depresses the f key 40 the corresponding white line lamp on switchboard F is lighted.

When the credit man is ready to be cominunicated with he inserts the plug 139 in the line jack on switchboard F and then depresses the ring key 146 at switchboard B to close a ring circuit which is as follows: from generator through the main positive wire, wire 240*, telephone set at clerks station Y, condenser :243 wire 242 contacts 61 and 60,

wires 244 244 245, contact'152 of line to click.

jack y at switchboard F, sleeve of plug 139, frame 143, wire 246 contacts 313 and 314 moved into engagement by operationof the connecting key, wire 315 wire 241", contacts 247' and 248, wire 249 wire 250, condenser 251, wire 252, inductance 253, wire 254, wire 255", contacts 256, and 257, wire 258 through main negative wire to the generator. The current over this circuit which is completed when the ring key is depressed and the blocks 264 of the disk 263 are in engagement with the brushes 265 and 266, charges the condensers 243 and 251 and en.- ergizes the electro-magnet of the clerks telephone receiver to make it click. Each time the blocks 264 move out of engagement with the brushes 265 and 266 the condensers 243 and 251 discharge through the disk 263 thereby causing the clerks telephone receiver In this manner the depression of the ring key at switchboard B makes the diaphragm of the receiver at the clerks station Y hum to notify the clerk that the credit man is ready to be communicated with.

.When the clerk at clerks station Y removes the telephone from the hook the following circuit for the energizing current oi the telephone line is closed: from the genator through the main positive wire, wire 240 clerks telephone set atstation Y, wire 275 contacts 62, 61 and 63, wire 27 6' wire 276 wire'277 contact 158, point of plug 139, contact 153, wire 27 8, contacts 320 and station Y, contacts 118 and 119, wires 292 244 244 and'245 contact 152, sleeve of the plug 139, frame 143, wire 246 contacts and 314-,wire 315 wire 241 contacts 247 and 290, wire 293 contacts 294and 295, stamp lamp 147 at switchboard B, wire 296, through the'main negative wire to the generator. The stamp circuit when the connecting key is depressed is similar to'the stamp lamp circuit, above described, except that the current passes from the contact 294 through the contact 300 instead oi through the stamp lamp. 7

It is obvious, 01 course, that when the connecting key is depressed contacts 320 and 322 and contacts 312 and 313 are moved out of engagement and therefore the stamp and ring keys and the telephone set at switchboard F cannot be used to handle the calls.

Lin-e signal circuit with transfer key depressed.

In Fig. 17 the circuits are shown ar-'- ranged so that the calls ordinarily indicated by the white line lamps 137 on switchboards A and B and on switrhboards E and F can be transferred to the switchboards C and G respectively. Therefore when the transfer keys 150 on the switchboards A, B, E and F are moved to transfer position the corresponding white line lamps 137 on switchboards C and G- are lighted whenever the clerks attempt to call the credit men ordinarily at switchboards A, B, E and F. It is obvious that if the connecting key at desk III is depressed the credit man at switchboard C can handle all the calls indicated on switchboard C and G by his own telephone set and ring stamp keys. Furthermore, if he answers both the white and red lamps on the switchboards he can also handle the calls ordinarily handled at switchboards D and H;

With the electrical circuits arranged as shown in Fig. 17 the calls ordinaril received on switchboards C, D, G and cannot be transferred to the other switchboards. However, the line jacks of these switchboards are shown as having the same constructions as those of the other switchboards, as in practice it is desirable to make all of the switchboards alike in order that the system may be changed to meet any requirement by merely changing the connecting wiring. lVith the arrangement of the electric circuits shown in Fig. 17 the transl l/ hen a transfer key 150 is moved to transfer position, the contacts 155 of the line jacks at this switchboard are moved out of engagement with the contacts 154, as above described, thereby preventing the line lamps at the switchboard from being lighted, the

key at switchboard B is in transfer position.

Depression of the 5 key closes the following line signal circuit: from the generator through the main positivewire, wire 180 contacts 183 and 184, wire 182, contacts 68 and 67 moved into engagement by the 5 key,

' wires 185 186 and 325", contacts 156 and 157 ofline jack an at switchboard B, wires 326, 327 328?, see nd 186, ac line 161 keys at switchboards C, D, G and H ,would be removed.

erator. The flash circuits are changed accordingly and need not be traced in detail. While the form of mechanism herein shown and described is admirably adapted to fulfil the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form of em bodiment herein disclosed, for it is susceptible of embodiment in various forms all coming within the scope of the claims which follow.

What is claimed is:

1. In a store system the combination with a telephone system comprising a plurality of clerks stations and a central station, of a plurality of switchboards. at the central station each comprising a set of contacts and a signal for each clerks station, means at the clerks stations for selecting the switchboard at which the correspondlng signal is to be operated, and means for operating said sets of contacts of a switchboardoso that the signals on another switchboard are operated whenever the means at the clerks stations are operated to'operate the signals on the switchboard on whichthe sets of contacts are operated.

2. In a store system the combination with a telephone system comprising a plurality of clerks stations and a central station, of a plurality of switchboards at the central station, each comprising a set of contacts and a signal for each clerks station, means at each clerks station for selecting the switchboard at which the corresponding signal is to be operated, and mechanism for operating the sets of contacts of a switchboard to disable the signals on the switchboard and cause the signals on another switchboard to be operated whenever the means at the clerks stations are operated to select signals on the switchboard whose sets of contacts have been operated by said mechanism.

3. In a store system the combination with a telephone system, comprising a plurality of clerks stations and a central station, of a plurality of switchboards at the central station each comprising a set of contacts and a signal for each clerks station, and means connected to the sets of contacts of one switchboard for operating the same so that the signals on another switchboard are then operated instead of the signals on the switchboard whose contacts are operated by said means.

V are operated.

4. In a store system the combination with a telephone system, comprising a plurality of clerks stations and a central station, of a pluralityv of switchboards at the central station each comprislng a set of contacts and a signal for each clerks station, and a device for operating simultaneously the sets of contacts of one switchboard so that the signals on another switchboard are operated instead of the signals on the switchboard whose contacts are operated by said device.

5. In a store system the combination with a telephone system comprising a plurality of clerks stations and a central station, of a plurality of switchboards at the central station each comprising a set of contacts and a signal for'each clerks station, means at the clerks stations for selecting the switchboard at which the corresponding signals are to be operated, and means for operating simultaneously said sets of contacts of a switchboard so that the signals on another switchboard are operated whenever the means at the clerks stations are operated to operate the signals on the switchboard on which the sets of contacts 6. In a store system the combination with a telephone system comprising a plurality of clerks stations and a central station, of a plurality of switchboards at the central station, each comprising a set of contacts and a signal for each clerks station, a sliding plate for one switchboard, and manipulative means for operating said plate to operate the'corresponding sets of contacts so that the signals on another switchboard are operated instead of the signals on the switchboard whose sets of contacts have been operated by said plate.

In a store system the combination with a telephone system comprising a plurality of clerks stations and a central station, of a plurality of switchboards at the central station each comprising a set of contacts and a signal for each clerks station, means at the clerks stations for selecting the switchboard at which the corresponding signal is to be operated, a sliding plate on one switchboard, and a manipulative device for moving said plate to operate the corresponding sets of contacts so that the signals on another switchboard are operated when the means at the clerks stations are operated to operate the signals on the switchboard on which the sets of contacts are operated by said plate.

' In testimony whereof we afiix our signatures.

HERBERT G. DORSEY. ARTHUR O. KIRSHNER. 

